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Don't use plain INC32 and DEC32 on x86-64; it needs

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INC64_32r and INC64_16r, because these instructions are encoded
differently on x86-64. This fixes JIT regressions on x86-64 in
kimwitu++ and others.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66207 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dan Gohman 2009-03-05 21:32:23 +00:00
parent 51bb47480e
commit 1f4af262d5
2 changed files with 30 additions and 8 deletions
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22
lib/Target/X86/X86Instr64bit.td
View File

@ -1730,6 +1730,28 @@ def : Pat<(parallel (X86smul_flag (loadi64 addr:$src1), i64immSExt32:$src2),
(IMUL64rmi32 addr:$src1, i64immSExt32:$src2)>;
// INC and DEC with EFLAGS result. Note that these do not set CF.
def : Pat<(parallel (X86inc_flag GR16:$src), (implicit EFLAGS)),
(INC64_16r GR16:$src)>, Requires<[In64BitMode]>;
def : Pat<(parallel (store (i16 (X86inc_flag (loadi16 addr:$dst))), addr:$dst),
(implicit EFLAGS)),
(INC64_16m addr:$dst)>, Requires<[In64BitMode]>;
def : Pat<(parallel (X86dec_flag GR16:$src), (implicit EFLAGS)),
(DEC64_16r GR16:$src)>, Requires<[In64BitMode]>;
def : Pat<(parallel (store (i16 (X86dec_flag (loadi16 addr:$dst))), addr:$dst),
(implicit EFLAGS)),
(DEC64_16m addr:$dst)>, Requires<[In64BitMode]>;
def : Pat<(parallel (X86inc_flag GR32:$src), (implicit EFLAGS)),
(INC64_32r GR32:$src)>, Requires<[In64BitMode]>;
def : Pat<(parallel (store (i32 (X86inc_flag (loadi32 addr:$dst))), addr:$dst),
(implicit EFLAGS)),
(INC64_32m addr:$dst)>, Requires<[In64BitMode]>;
def : Pat<(parallel (X86dec_flag GR32:$src), (implicit EFLAGS)),
(DEC64_32r GR32:$src)>, Requires<[In64BitMode]>;
def : Pat<(parallel (store (i32 (X86dec_flag (loadi32 addr:$dst))), addr:$dst),
(implicit EFLAGS)),
(DEC64_32m addr:$dst)>, Requires<[In64BitMode]>;
def : Pat<(parallel (X86inc_flag GR64:$src), (implicit EFLAGS)),
(INC64r GR64:$src)>;
def : Pat<(parallel (store (i64 (X86inc_flag (loadi64 addr:$dst))), addr:$dst),

16
lib/Target/X86/X86InstrInfo.td
View File

@ -3715,26 +3715,26 @@ def : Pat<(parallel (store (i8 (X86dec_flag (loadi8 addr:$dst))), addr:$dst),
(DEC8m addr:$dst)>;
def : Pat<(parallel (X86inc_flag GR16:$src), (implicit EFLAGS)),
(INC16r GR16:$src)>;
(INC16r GR16:$src)>, Requires<[In32BitMode]>;
def : Pat<(parallel (store (i16 (X86inc_flag (loadi16 addr:$dst))), addr:$dst),
(implicit EFLAGS)),
(INC16m addr:$dst)>;
(INC16m addr:$dst)>, Requires<[In32BitMode]>;
def : Pat<(parallel (X86dec_flag GR16:$src), (implicit EFLAGS)),
(DEC16r GR16:$src)>;
(DEC16r GR16:$src)>, Requires<[In32BitMode]>;
def : Pat<(parallel (store (i16 (X86dec_flag (loadi16 addr:$dst))), addr:$dst),
(implicit EFLAGS)),
(DEC16m addr:$dst)>;
(DEC16m addr:$dst)>, Requires<[In32BitMode]>;
def : Pat<(parallel (X86inc_flag GR32:$src), (implicit EFLAGS)),
(INC32r GR32:$src)>;
(INC32r GR32:$src)>, Requires<[In32BitMode]>;
def : Pat<(parallel (store (i32 (X86inc_flag (loadi32 addr:$dst))), addr:$dst),
(implicit EFLAGS)),
(INC32m addr:$dst)>;
(INC32m addr:$dst)>, Requires<[In32BitMode]>;
def : Pat<(parallel (X86dec_flag GR32:$src), (implicit EFLAGS)),
(DEC32r GR32:$src)>;
(DEC32r GR32:$src)>, Requires<[In32BitMode]>;
def : Pat<(parallel (store (i32 (X86dec_flag (loadi32 addr:$dst))), addr:$dst),
(implicit EFLAGS)),
(DEC32m addr:$dst)>;
(DEC32m addr:$dst)>, Requires<[In32BitMode]>;
//===----------------------------------------------------------------------===//
// Floating Point Stack Support